O P Ferraz

Publications11
h-index8
Citations300
Highly Influential Citations8
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Bovine papillomavirus transmission and chromosomal aberrations: an experimental model.
Enzootic haematuria and urinary bladder cancer in cattle are associated with feeding on bracken fern and bovine papillomavirus (BPV) infection. An increased rate of chromosomal aberrations in… Expand
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The corrosion protection of steel in sea water using zinc-rich alkyd paints. An assessment of the pigment-content effect by EIS
Abstract The effect of pigment volume concentration ( c v,p ) on the corrosion resistance properties of zinc-rich paints (ZRP) has been investigated using electrochemical impedance spectroscopy (EIS)… Expand
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Bovine papillomavirus type 4 L1 gene transfection in a Drosophila S2 cell expression system: absence of L1 protein expression
The development of a bovine papillomavirus (BPV) vaccine is an outstanding challenge. BPV protein L1 gene transfection in the Drosophila melanogaster S2 cell expression system failed to produce L1… Expand
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Cytogenetic studies in peripheral blood of bovines afflicted by papillomatosis.
Ten types of bovine papillomavirus (BPV) have been described and there are reports of viral transmission via blood. The presence of viral DNA in lymphocytes was described to be associated with… Expand
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X-linked syndrome: mental retardation, hip luxation, and G6PD variant [Gd(+) Butantan].
An apparently new X-linked syndrome is presented. It occurred in four male first cousins. The main manifestations of this syndrome are severe mental retardation, bilateral congenital hip luxation,… Expand
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Simultaneous presence of bovine papillomavirus and bovine leukemia virus in different bovine tissues: in situ hybridization and cytogenetic analysis.
Bovine papillomavirus (BPV) DNA sequences were detected in different tissues, in addition to epithelium. Cytogenetic abnormalities were observed in blood lymphocytes. The presence of more than one… Expand
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Collaborative prospective study of the fragile X syndrome: one-year progress report.
A prospective study of the fragile X syndrome [fra(X)] was initiated one year ago to refine the estimates of recurrence risks based on the phenotype of the mother and the family history of the… Expand
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Quercetin induces structural chromosomal aberrations and uncommon rearrangements in bovine cells transformed by the E7 protein of bovine papillomavirus type 4.
Bovine papillomavirus type 4 (BPV-4) and bracken fern are cofactors in the carcinogenesis of the upper gastrointestinal (GI) tract of cattle. An experimental in vitro model system has been developed… Expand
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Can established cultured papilloma cells harbor bovine papillomavirus?
Papillomaviruses have been reported to be very difficult to grow in cell culture. Also, there are no descriptions of cell cultures from lesions of bovine cutaneous papillomatosis, with identification… Expand
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Corrosion Protection of Steel in Sea Water Using Zinc‐Rich Alkyd Paints. An Assessment of the Pigment‐Content Effect by Electrochemical Impedance Spectroscopy (EIS).
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